... 214968). [308]. MF Semmelhack, A. Yamashita, JC Tomesch, K. Hirotsu (J. Am. Chem. Soc. ... [324]. FA Levina, GI Rybalko, D.-IB Sidaravichyus, AM Stadkov (USSR 165970 [1965]). [325]. H. Kleijn, J. Meijer, GC Overbeek, P. Vermeer (Rec. J. Roy. Neth. Chem. Soc. ...